Ventilation – Workstation ventilator – Having inlet airway
Patent
1998-04-06
1999-06-22
Joyce, Harold
Ventilation
Workstation ventilator
Having inlet airway
134 21, 134902, B08B 1502
Patent
active
059137215
ABSTRACT:
An apparatus for cleaning a process chamber that includes a ventilation hood which has a fluid flow channel attached to an inner peripheral wall of the hood body equipped with a plurality of fluid nozzles pointing downwardly toward a process chamber cavity when the hood is positioned on such process chamber, and a method for using the apparatus. A purge gas flown through the fluid nozzles carries substantially all contaminating fumes or particles away from the process chamber cavity into an air evacuation system such as a factory vacuum exhaust system such that contamination of the process chamber can be essentially eliminated.
REFERENCES:
patent: 4755844 (1988-07-01), Tsuchiya et al.
patent: 5522412 (1996-06-01), Ohba et al.
Joyce Harold
Taiwan Semiconductor Manufacturing Co. Ltd.
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